Simultaneous analog and digital communication using partitioning of bits into words
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United States of America Patent
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Dec 1, 1998
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N/A
app pub date -
May 20, 1997
filing date -
Jun 14, 1993
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Abstract
Digital data is encoded by partitioning a predetermined number of bits into two separate words. The first word is mapped into a first symbol constellation to produce a first data signal. The second word is mapped into a second symbol constellation that has a different number of symbols than the first symbol constellation to produce a second data signal. An additional signal is added to the first data signal to form a first combined signal. Another additional signal is added to the second data signal to form a second combined signal. The first and second combined signals are transmitted over a communication channel.
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